Devtunnel CLI doesn't work with macOS 26.5

[gungazoo]

I get errors when trying to use 'devtunnel' on my Mac. I installed via the 'curl' option which uses the DevTunnelCliInstall script. I've also tried Homebrew and downloading the zip file.

Tunnel CLI version: 1.0.1824+9e602bae78
Tunnel service URI : https://global.rel.tunnels.api.visualstudio.com/
Tunnel service version : 1.0.1816.50431 (c4ff07f64c; 2026-05-04 21:26:02Z)
Tunnel service cluster : use2

When I run 'devtunnel -v user login --entra' I get the below error:

MSAL: Using system browser.
MSAL: Exception type: System.PlatformNotSupportedException
To see full exception details, enable PII Logging. See https://aka.ms/msal-net-logging
at Microsoft.Identity.Client.Platforms.netstandard.NetCorePlatformProxy.StartDefaultOsBrowserAsync(String url, Boolean isBrokerConfigured)
at Microsoft.Identity.Client.Platforms.Shared.Desktop.OsBrowser.DefaultOsBrowserWebUi.<>c__DisplayClass10_0.b__0(Uri u)
at Microsoft.Identity.Client.Platforms.Shared.Desktop.OsBrowser.DefaultOsBrowserWebUi.InterceptAuthorizationUriAsync(Uri authorizationUri, Uri redirectUri, Boolean isBrokerConfigured, CancellationToken cancellationToken)
at Microsoft.Identity.Client.Platforms.Shared.Desktop.OsBrowser.DefaultOsBrowserWebUi.AcquireAuthorizationAsync(Uri authorizationUri, Uri redirectUri, RequestContext requestContext, CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.AuthCodeRequestComponent.FetchAuthCodeAndPkceInternalAsync(IWebUI webUi, CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.AuthCodeRequestComponent.FetchAuthCodeAndPkceVerifierAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.InteractiveRequest.GetTokenResponseAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.InteractiveRequest.ExecuteAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.RequestBase.<>c__DisplayClass11_1.<b__1>d.MoveNext()
--- End of stack trace from previous location ---
at Microsoft.Identity.Client.Utils.StopwatchService.MeasureCodeBlockAsync(Func`1 codeBlock)
at Microsoft.Identity.Client.Internal.Requests.RequestBase.RunAsync(CancellationToken cancellationToken)

Unhandled exception: System.PlatformNotSupportedException: macOS 26.5.0
at Microsoft.Identity.Client.Platforms.netstandard.NetCorePlatformProxy.StartDefaultOsBrowserAsync(String url, Boolean isBrokerConfigured)
at Microsoft.Identity.Client.Platforms.Shared.Desktop.OsBrowser.DefaultOsBrowserWebUi.<>c__DisplayClass10_0.b__0(Uri u)
at Microsoft.Identity.Client.Platforms.Shared.Desktop.OsBrowser.DefaultOsBrowserWebUi.InterceptAuthorizationUriAsync(Uri authorizationUri, Uri redirectUri, Boolean isBrokerConfigured, CancellationToken cancellationToken)
at Microsoft.Identity.Client.Platforms.Shared.Desktop.OsBrowser.DefaultOsBrowserWebUi.AcquireAuthorizationAsync(Uri authorizationUri, Uri redirectUri, RequestContext requestContext, CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.AuthCodeRequestComponent.FetchAuthCodeAndPkceInternalAsync(IWebUI webUi, CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.AuthCodeRequestComponent.FetchAuthCodeAndPkceVerifierAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.InteractiveRequest.GetTokenResponseAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.InteractiveRequest.ExecuteAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.Internal.Requests.RequestBase.<>c__DisplayClass11_1.<b__1>d.MoveNext()
--- End of stack trace from previous location ---
at Microsoft.Identity.Client.Utils.StopwatchService.MeasureCodeBlockAsync(Func`1 codeBlock)
at Microsoft.Identity.Client.Internal.Requests.RequestBase.RunAsync(CancellationToken cancellationToken)
at Microsoft.Identity.Client.ApiConfig.Executors.PublicClientExecutor.ExecuteAsync(AcquireTokenCommonParameters commonParameters, AcquireTokenInteractiveParameters interactiveParameters, CancellationToken cancellationToken)
at Microsoft.DevTunnels.Cli.Authentication.UserManager.LoginAadUserAsync(LoginOptions options, DeviceCodeCallback deviceCodeCallback, CancellationToken cancellation) in /Users/runner/work/1/s/src/Tunnel/Src/CLI/Authentication/UserManager.cs:line 747
at Microsoft.DevTunnels.Cli.Authentication.UserManager.LoginAsync(LoginOptions options, DeviceCodeCallback deviceCodeCallback, CancellationToken cancellation) in /Users/runner/work/1/s/src/Tunnel/Src/CLI/Authentication/UserManager.cs:line 445
at Microsoft.DevTunnels.Cli.Commands.UserCommands.LoginAsync(LoginOptions options, CancellationToken cancellation) in /Users/runner/work/1/s/src/Tunnel/Src/CLI/Commands/UserCommands.cs:line 126